Why are there always more members on the lower trophic levels than the higher trophic levels?

Does masterbation affect height growth or loss of growth hormone?

{answer found. it's (3 ) }which statement describes the cell cycle? (1)the cell cycle is a process in which one cell divides into four genetically different cells. (2)the cell cycle is a process in which one cell divides into two genetically different cells. (3)the cell cycle is a process in which one cell divides into two genetically identical cells. (4)the cell cycle is a process in which one cell divides into four genetically identical cells.

What advantages does a pedigree have over a written passage?